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Bob Copeland
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John W. Linville
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Mar 16, 2009
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| --- | ||
| refs/heads/master: 8d6c39efed5987d3c1ade96e93753125a099f512 | ||
| refs/heads/master: 0ed4548f81b69363a6257dbc23086fc9fe4a23cb |
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| /* | ||
| * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting | ||
| * Copyright (c) 2004-2005 Atheros Communications, Inc. | ||
| * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> | ||
| * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com> | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer, | ||
| * without modification. | ||
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | ||
| * redistribution must be conditioned upon including a substantially | ||
| * similar Disclaimer requirement for further binary redistribution. | ||
| * 3. Neither the names of the above-listed copyright holders nor the names | ||
| * of any contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * | ||
| * Alternatively, this software may be distributed under the terms of the | ||
| * GNU General Public License ("GPL") version 2 as published by the Free | ||
| * Software Foundation. | ||
| * | ||
| * NO WARRANTY | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY | ||
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | ||
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, | ||
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | ||
| * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | ||
| * THE POSSIBILITY OF SUCH DAMAGES. | ||
| * | ||
| */ | ||
|
|
||
| #include <linux/pci.h> | ||
| #include "ath5k.h" | ||
| #include "base.h" | ||
|
|
||
| void ath5k_led_enable(struct ath5k_softc *sc) | ||
| { | ||
| if (test_bit(ATH_STAT_LEDSOFT, sc->status)) { | ||
| ath5k_hw_set_gpio_output(sc->ah, sc->led_pin); | ||
| ath5k_led_off(sc); | ||
| } | ||
| } | ||
|
|
||
| void ath5k_led_on(struct ath5k_softc *sc) | ||
| { | ||
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) | ||
| return; | ||
| ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on); | ||
| } | ||
|
|
||
| void ath5k_led_off(struct ath5k_softc *sc) | ||
| { | ||
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) | ||
| return; | ||
| ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on); | ||
| } | ||
|
|
||
| static void | ||
| ath5k_led_brightness_set(struct led_classdev *led_dev, | ||
| enum led_brightness brightness) | ||
| { | ||
| struct ath5k_led *led = container_of(led_dev, struct ath5k_led, | ||
| led_dev); | ||
|
|
||
| if (brightness == LED_OFF) | ||
| ath5k_led_off(led->sc); | ||
| else | ||
| ath5k_led_on(led->sc); | ||
| } | ||
|
|
||
| static int | ||
| ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led, | ||
| const char *name, char *trigger) | ||
| { | ||
| int err; | ||
|
|
||
| led->sc = sc; | ||
| strncpy(led->name, name, sizeof(led->name)); | ||
| led->led_dev.name = led->name; | ||
| led->led_dev.default_trigger = trigger; | ||
| led->led_dev.brightness_set = ath5k_led_brightness_set; | ||
|
|
||
| err = led_classdev_register(&sc->pdev->dev, &led->led_dev); | ||
| if (err) { | ||
| ATH5K_WARN(sc, "could not register LED %s\n", name); | ||
| led->sc = NULL; | ||
| } | ||
| return err; | ||
| } | ||
|
|
||
| static void | ||
| ath5k_unregister_led(struct ath5k_led *led) | ||
| { | ||
| if (!led->sc) | ||
| return; | ||
| led_classdev_unregister(&led->led_dev); | ||
| ath5k_led_off(led->sc); | ||
| led->sc = NULL; | ||
| } | ||
|
|
||
| void ath5k_unregister_leds(struct ath5k_softc *sc) | ||
| { | ||
| ath5k_unregister_led(&sc->rx_led); | ||
| ath5k_unregister_led(&sc->tx_led); | ||
| } | ||
|
|
||
|
|
||
| int ath5k_init_leds(struct ath5k_softc *sc) | ||
| { | ||
| int ret = 0; | ||
| struct ieee80211_hw *hw = sc->hw; | ||
| struct pci_dev *pdev = sc->pdev; | ||
| char name[ATH5K_LED_MAX_NAME_LEN + 1]; | ||
|
|
||
| /* | ||
| * Auto-enable soft led processing for IBM cards and for | ||
| * 5211 minipci cards. | ||
| */ | ||
| if (pdev->device == PCI_DEVICE_ID_ATHEROS_AR5212_IBM || | ||
| pdev->device == PCI_DEVICE_ID_ATHEROS_AR5211) { | ||
| __set_bit(ATH_STAT_LEDSOFT, sc->status); | ||
| sc->led_pin = 0; | ||
| sc->led_on = 0; /* active low */ | ||
| } | ||
| /* Enable softled on PIN1 on HP Compaq nc6xx, nc4000 & nx5000 laptops */ | ||
| if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ) { | ||
| __set_bit(ATH_STAT_LEDSOFT, sc->status); | ||
| sc->led_pin = 1; | ||
| sc->led_on = 1; /* active high */ | ||
| } | ||
| /* | ||
| * Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) and | ||
| * in emachines notebooks with AMBIT subsystem. | ||
| */ | ||
| if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN || | ||
| pdev->subsystem_vendor == PCI_VENDOR_ID_AMBIT) { | ||
| __set_bit(ATH_STAT_LEDSOFT, sc->status); | ||
| sc->led_pin = 3; | ||
| sc->led_on = 0; /* active low */ | ||
| } | ||
|
|
||
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) | ||
| goto out; | ||
|
|
||
| ath5k_led_enable(sc); | ||
|
|
||
| snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); | ||
| ret = ath5k_register_led(sc, &sc->rx_led, name, | ||
| ieee80211_get_rx_led_name(hw)); | ||
| if (ret) | ||
| goto out; | ||
|
|
||
| snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); | ||
| ret = ath5k_register_led(sc, &sc->tx_led, name, | ||
| ieee80211_get_tx_led_name(hw)); | ||
| out: | ||
| return ret; | ||
| } | ||
|
|